<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>管理员登录</title>
  <link rel="stylesheet" href='style/login.css'/>
  <style>
    
    @media screen and (max-width:800px){
.main{
  width:90%;
  height:220px;
  margin:30px auto;


}
.main .main_left img{
  width:0px;
  height:0px;
display: none;

}
.main .main_right{
  width:100%;
  height:275px;
  margin-top: 20px;
  margin-left:50px;
  background-color: white;
  border:1px solid coral;
  
}

}
  </style>
</head>

<body>
   <p class=title>超市管理登录系统</p>
    <div class=main>
   <div class=main_left>
     <img src=images/登录界面.jpg  />
   </div>
   <div class=main_right>
       <h1>login</h1>
      <form action="login.php" method="POST" onsubmit="return check()">
       用户名：<input type='text' name='username' size=20 class=srk required placeholder="请输入用户名"><br>
       密&nbsp;&nbsp;&nbsp;码：<input type='text' name='password' size=20 class=srk required placeholder="请输入密码"><br>
       <input type='submit' value=登录 class=dlann><br>
       <p>没有账号点击这里--><a href=sign.html>注册</a> <a href=retrievepassword.php>找回密码</a></p>
    </form>
   </div>
   </div> 
</body>
</html>